Locking device for permutation-locks.



PATENTED OCT. 2, 1906.

v P. DUESTBRWALD. LOCKING DEVICE PoR PERMUTATION LOCKS.

APPLICATION FILED 1330.28, 1905.

A TTRNE YS THE NaRRrs Ps1-ERS co, wAsH1NaroN,-D. t,

UNITED STATES 'PATENT OFFICE.

FRANK DUESTERWALD, OF NEW YORK, N. Y., ASSIGNOR TO CHARLES E. LEIGHTON, OF BROOKLYN, NEW YORK.

LOCKING DEVICE FOR PERNIUTATION-LOCKS.

Speccaton of Letters Patent.

Patented Oct. 2, 1906.

Application led December 28,1905. Serial No. 293,627.

which the following is a full, clear, and exact description.

The invention relates to locking devices for casings of permutation-locks, and is intended for the same purpose as the devices shown and described in the Letters Patent ofthe United States No. 778,018, grantedto me December 20, 1904, and in Letters Patent of the United States No. 828,276, dated August 7, 1906;

The object of the present invention is to provide a new and improved locking device for the casings of permutation-locks arranged to prevent unauthorized persons from gaining knowledge of the combination of the permutation-lock while the safe is open and to enable the owner or person in charge of the safe to readily and conveniently change the combination whenever it is desired to do so and without danger of forming a "lockout.7

The invention consists of novel features and .parts and combinations of the same, which will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a sectional plan viewof the improvement as applied to' the permutationlock of a safe, the section being onthe line l 1 of Fig. 2. Fig. 2 is a face view of the same, part being broken out and parts being shown in section. Fig, 3 is a sectional plan view of an alternative form of theimprovement. Fig. 4 is a front face view of part of the permutation-lock. Fig. 5 is a face view of an alternative form of the improvement, part being shown in section. Fig. 6 is a sectional plan view of the same on the line 6 6 of Fig. 5, and Fig. 7 is a face view of another alternative form of the improvement.

In the locking device for the casings of permutation-locks shown and described in knob C under the control of the operator.

the Letters Patent of the United States No. 77 8,018, above referred to, the cover of the 5 casing of the permutation-lock and carrying the tumblers is held against removal by a lock separate and independent of the permutation-lock, and in the arrangement shown and described in Letters Patent No. 828,276, above referred to, the locking device for the cover of the permutation-lock casing is controlled by the mechanism of the permutationlock, the locking device having movement independent of the movement of the bolt of and the bolt are controlled by the same combination of tumblers, which read at different points.

In the invention presently to be described in detail the locking device for the coveris controlled by the tumblers and is shifted into locking position on turning the spindle of the permutation-lock.

The permutation-lockA is arranged on the door B of the safe, vault, or like device, and on the spindle C of the said permutation-lock `is secured the usual notched disk or false tumbler D, having a notch D for engagement with a dog E, connected with a bolt E, to swing the same into an open or closed position in the usual manner. The notched disk D controls tumblers F in the usual manner, the tumblers being mounted to turn on a stud G, arranged on the removable section or cover' G of the casing H, fastened lby screws H/ or other fastening devices to the door B of the safe, the said casing H containing the tumblers F, the notched disk D, the dog E', and the bolt E, as will be readily understood by reference to the drawings. It is understood that the tumblers F are set to a desired combination and are controlled according to this combination from the disk D turning with the spindle O, the latter having the usual The spindle O carries a dial O2, indicating on a fixed point O3, arranged on a ring C, attached to the front of the safe-doorB. (See Figs. 1 and 4.)

In order to lock the cover G in position on the casing H, a locking-bolt I is provided, mounted to slide in a bearing formed on the inside of the cover G, the bolt being adapted to pass into a notch H2, formed on the casing H, and a spring I tends to draw the bolt I the permutation-lock; but the locking device IOO out of engagement with the notch H2. On l the bolt I is screwed or otherwise removably I secured an inwardly-extending pin I2, reaching across the peripheral faces of the tumblers F. This pin normally prevents the spring I from withdrawing bolt I by engaging the edges of the tumblers F and false tumbler-D; but said pin is adapted to pass into the registering notches F of the said tumblers Whenever the latter have been set according to the combination of the permutation-lock and whenever the notch D of the notched disk D is in register with the notches F in the tumblers F. f When this takes place, the spring I withdraws the bolt I from the notch H2, thus unlocking the cover G to allow removal thereof from the casing H, with a view to enable the owner or person in charge of the safe to change the combination in the usual manner. When the combination has been reset and the cover H returned to position, together with the tumblers F, and the operator turns the spindle C, then the wall of the notch D of the disk D acts as a cam on the pin I2, so as to push the bolt I outward into engagement with the ynotch H2 to lock the cover G againl on the casing H. Itis understood that when the pin I2 is acted on by the notched disk D as described, it moves out of engagement with the notches F in the tumblers F, and consequently the bolt I cannot be withdrawn unless the tumblers have their notches F in register with the pin I2,

and the notch D is at thesame time-in register with the said tumbler-notches F and the From the foregoing it will be seen that the cover Ais locked to the casing H by a locking device" having a member controlled by the tumblers F and shifted into locking position pykthe notched disk D of the permutationoc i It is important to provide means for throwingthis locking device out of action when desired, both to prevent a possible lock out through failure to note correctly the combination after changing the same and for the convenience of the lock and safe dealers, who customarily will desire to put the locking device into action only after delivery of the lock or safe to a purchaser. To this end, I make the pin I2 removable from the bolt I, said pin being, as already stated, a mere screw which may be unscrewed readily when the back plate G is detached from the lock-casing and may be replaced as readily. When said pin I2 is removed, the bolt I is not controlled at all by the tumblers F and false tumbler D, and the back plate may be removed at any time independent of the position of the tumblers, the bolt I being held back by the spring I. Thisis a considerable convenience to the safe and lock dealers, but is of much more importance to the safe owner, who may make a mistake in noting down the new combination after changing the combination. Before replacing the cover or back plate G after changing the combination the screw I2 should be removed temporarily, the back plate being then put in place and the lock tested. ,In case a mistake is made the cover G is removed and the mistake rectified, and then the pin I2 is secured to the bolt I and the cover G, with the tumblers thereon, is placed in position and the knob C is turned to cause the bolt I to lock the cover G in place, as above described.

In order to properly guide the pin I2 when pushed out of engagement with the notches F of the tumblers F, a bearing J is provided, secured to or formed in the casing H and eX- tending over the top of the pin I2, as will be readily understood by reference to Figs. l and 2. Thus when the notched disk D acts on the pin I2 with a view to move the bolt I into a locking position then the pin .I2 by abutting against the under side of the bearing J is prevented from bending or springing, and consequently. a proper pushing of the bolt I into locking position is obtained. In the arrangement shown in Figs. l and '2 the bolt I is pushed into locking position by the action of the notched disk D but, if desired, one of the tumblers F may be used for this purpose. For instance, as shown inFig. 3, a bolt I3 is mounted to slide in a cover G2 to engage a notch H3 in the casing H4 with a view to lock the cover G2 to the casing H4. .A removable pin I4 on the bolt I3 extends across the. peripheral surfaces of the tumblers F2 and'when in register with the notches thereof .is drawn into the same-by the action of the springI5 pressing the bolt I3 with a view to withdraw the same from the notch H3. When the tumblers F2 are turned, one or all of the same push the pin I4 outward, so that the bolt I3 is moved into locking position against the tension of a spring I5. In case the spring I5 should become-broken or it is desired to shoot the bolt I3 by handout of engagement with the notch H3 at the time the notches of the tumblers F2 are in register` with the pin I4, then use is made of a pin I6, projecting from the bolt I3 and 4extending through an elongated slot G3, formed in the cover G27 to the outside thereof. On the outer end of the pin I is secured or formed a knob I7 under the control of the operator for withdrawing the bolt I3 from the notch H3 whenever the pin I4 registers with the notches in the tumblers F2, said knob I7 covering, and thereby concealing, the elongatedslot G2. In order to properly guide the pin I4 and push it out of the tumblers F2 by the action thereof, as above explained, a guide J is provided secured to or formed on the cas-A in H4.

IIO

n order to provide another means to preprovided with an opening H5, through which the operator may pass a iinger to reset the tumblers F in case there should have been a mistake made in changing the combination. This opening H5 is closed to prevent unauthorized persons from operating the tumblers, and in a like manner the pivot-pin E2 for the dog E is covered to prevent access by unauthorized persons to the said pivot-pin. For the purpose mentioned a ring K is fitted over an annular iange H0, into which fits the annular iiange G4 of the cover G, the latter being extended beyond the iange H0 to prevent removal of the ring K as long as the cover G is in a locked position. (See Figs. 1 and 3.) The ring K is provided with a hook K', adapted to hook onto the casing H from the inside thereof, and on the ring K are formed extensions K2 and K3, (see Fig. 2,) of which the extension K2 covers the pivot-pin E2 and the extension K3 covers the opening H5. In the non-lock-out device just described it is not necessary to remove the pin I2 from the bolt I, as before described.

In the alternative form illustrated in Figs. 5 and 6 a locking-bolt I8 is mounted to slide in suitable bearings on a cover G5 and is adapted to pass into a notch H0, formed in a plate H7, secured to the casing H2, provided with an elongated slot H0, forming a bearing for the free end of a pin I0, removably secured to and projecting transversely from the bolt I8 and pressed on by a spring I10 for withdrawing the bolt I8 from the notch H0.

In the alternative form shown in Figs. 5 and 6 the pin I8 is pushed into a locking position by a notched disk D3, turning with a spindle C0 and actuating a dog E5, connected with a bolt E4, lfulcrumed on a pivot-pin E5, held on the casing H0. A cover G5 fits onto a removable auxiliary cover H10 for thecasing H8, and this cover H10 is provided with a hook H11, engaging the side wall of the casing H2, as plainly indicated in Fig. 6. The pivot pin E5 extends through the plate H7, covered by the auxiliary cover H10. Now by the arrangement described the user of the safe after resetting the combination iirst places the cover G5 with the reset tumblers F3 in position in the casing H8 and without the auxiliary cover H10 being in position. If the combination is found to be not correct on working the combination-lock, then the operator can insert his finger between the edge of plate H7 and the wall of the casing H8 to turn the tumblers, and thereby properly set the combination. When this has been done, the cover G5, with the tumblers F3 properly set, is removed to allow of first placing the auxiliary cover H10 in position, after which the cover G5, with the tumblers thereon, is replaced and locked in position on turning the spindle C. Thus a lock-out when making a mistake in resetting the combination is prevented.

The tumblers F3 in the alternative form shown in Figs. 5 and 6 are similar to the ones shown in Fig. 1, so that further description of the same is not deemed necessary, it being, however, expressly understood that the bolt I5 cannot be withdrawnl by the action of its spring I10 until the pin I0 of the bolt I0 is in register with the notches in the tumblers F5 and in register with the notch oi the disk D5. The pin I0 is unscrewed and removed to avoid lock-outs, the same as above described in reference to the pin I2.

In order to indicate the registering position of the notches of the tumblers F3 and that of the disk D5, it is necessary to turn the dial C2 until the combination indicates on a point C5, formed on the ring' C'1 and spaced from the point C5, as plainly shown in Fig. 4. As this arrangement is similar to the one shown and described in the application for Letters Patent above referred to, it is not deemed necessary to further describe the same in detail.

In, the alternative form shown in Fig. 7 the bolt I11 for locking the cover G0 to the casing H12 is made in the form of a lever fulcrumed at I12 on the cover G0, and a spring I13 is provided for withdrawing the bolt I11 from the notch H15, formed in the casing H12. The bolt I11 is provided with a removable transverse pin I14 for engagement by the tumblers F and the notched disk D, as above described in reference to Fig. 1. This form of my invention is described and claimed in my application for Letters Patent iiled July 18, 1906, Serial No. 326,729.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A permutation-lock comprising a main bolt, permutation mechanism, a casing inclosing said mechanism and having a removable lclosure, and locking means for said closure movable with respect thereto and to said main bolt, and controlled by the permutation mechanism, said permutation mechanism comprising means for operating said locking device.

2. A permutation-lock comprising a main bolt, permutation mechanism, a casing inclosing said mechanism and having a removable closure, locking means for said closure movable with respect thereto and to said main bolt, and automatic means for moving saidlocking means out of the locking position and into an unlocking position, said permutation mechanism comprising means for moving said locking device from the unlocking to the locking position.

8. A permutation-lock comprising a main bolt, permutation mechanism, a casing inclosing said mechanism and having a removable closure, locking means for said closure movable with respect thereto and to said main bolt, and automatic means for moving roc ISO

. device from the unlocking to the locking position.

5. A permutation-lock comprising a main bolt, permutation mechanism including tumblers, a spindle, and'a disk thereon, a casing inclosing said mechanism and having a removable closure, locking means for said closure movable with respect thereto and to said main bolt, and comprising means engaging the tumblers and said disk, and means for moving said locking means outof locking position, said disk having a notch formed to force said locking means back into locking position upon rotation of said disk.

6. A permutation-lock comprising permutation mechanism including tumblers and a notched disk, and a casing for said mechanism provided With a removable cover, a locking device for the said cover having a locking member movable With respect to said cover for lockingl the cover to the casing, the said locking member being held in locking position by the tumblers and the notched disk ci the permutation mechanism, and means independent of the permutation mechanism vfor moving the said locking member into unlocking position.

7. A permutation-lock comprising permutation mechanism including tumblers and a notched disk, and a casing for said mechanism provided With a removable cover, a locking device for the said cover having a locking member movable with respect to said cover for locking the cover to the casing, the said locking member being held in locking position by the tumblers and the notched disk of the permutation mechanism, and means inl dependent of the permutation mechanism for moving the said locking member into unlocking position, the said means being inside of the said casing.

8. A permutation-lock comprising permutation mechanism including tumblers and a notched disk, and a casing for said mechanism provided With a removable cover, a locking device for the said cover having a locking member movable With respect to said cover for locking the cover to the casing, the said locking member being held in locking position by the tumblers and the notched disk of the permutation mechanism, and a spring Within the said casing pressing the said locking member to move the latter into unlocking position. i

9. A permutation-lock comprising a main bolt and permutation mechanism, and a casing inclosing said mechanism and provided With a removable cover, and a locking device for the cover movable With respect to said main bolt and contained Wholly Within the said casing and adapted to be moved into locking position by a member of the said permutation mechanism.

10. A permutation-lock comprising a main bolt and permutation mechanism, and a casing inclosing said mechanism and provided with a removable cover, and a locking device for the cover movable With respect to said main bolt and contained Wholly Within the said casing and adapted to be moved into locking position by the member of the permutation-lock employed for actuating said main bolt.

11. A permutation-lock comprising a main bolt and permutation mechanism, and a casing inclosing said mechanism and provided with a removable cover, a locking device for the cover movable with respect to said main bolt and contained Wholly Within the said casing and adapted to be moved into locking position by a member of the said permutation-lock, and a guide for the said locking device.

12. A permutation-lock comprising a main bolt andpermutation mechanism, and a casing inclosing said mechanism and provided With a removable cover, a locking device for the said cover comprising a cover-bolt mounted on the said cover andadapted to engage the casing to lock the cover against removal, said permutation mechanism comprising cover-bolt-operating means operated by the operation of the permutation mechanism to move the cover-bolt into locking position.

13. A permutation-lock comprising a main bolt and permutation mechanism, and a casing inclosing said mechanism and provided With a removable cover, a locking device Jfor the said cover comprising a cover-bolt mounted on the said cover and adapted to engage the casing to lock the cover against removal, said permutation mechanism comprising cover-bolt-operating means operated by the operation of the permutation mechanism to move the bolt into locking position, and a spring on the said cover-bolt for Withdrawing it.

14. A permutation-lock comprising a main bolt and permutation mechanism, and a casing inclosing said mechanism and provided With a removable cover, a locking device for the said cover comprising a cover bolt mounted on the said cover and adapted to engage the casing to lock the cover against removal, said permutation mechanism comprising cover-bolt-operating means operated IOO by the operation of the permutation mechanism to move the cover-bolt into locking position, and a guide for the said cover-bolt.

15. A permutation-lock comprising a main bolt and permutation mechanism, and a casing. inclosing said mechanism and provided with a removable cover, and a locking device for the said cover comprising a bolt movable With respect to said cover and main bolt and mountedon the said cover and adapted to engage the casing to lock the cover against removal, the said bolt having a transverse pin extending peripherally across-the tumblers to engage the notches thereof, said permutation mechanism comprising means operated by the operation of the permutation mechanism to engage the said pin for moving the cover-bolt into locking position.

16. A permutation-lock comprising a main bolt and permutation mechanism, and a casing inclosing said mechanism and provided with a removable cover, a locking device for the said cover comprising a bolt movable with respect to said cover and main bolt and mounted on the said cover and adapted to engage the casing to lock the cover against removal, the said bolt having a transverse pin extending peripherally across the tumblers to engage the notches thereof, said permutation mechanism comprising means operated by the operation of the permutation mechanism to engage the said pin for moving the cover-bolt into locking position, and a guide for the said pin located at a point distant from the support thereof. I

17. A permutation-lock comprising permutation mechanism, a casing inclosing the same having a removable closure and an opening other than that closed by said removable closure, through Which opening access to the permutation mechanism may be obtained, means for covering the said opening, and a locking device for said removable closure, said closure arranged While in place to prevent removal of the said covering means.

18. A permutation-lock comprising a casing having an opening and a removable closure covering the same, permutation mechanism Within said casing having a member projecting therethrough, covering means covering the exposed portion of Vsaid projecting member and normally held in place by said removable closure, and a locking device for said removable closure controlled by the permutation mechanism.

19. A permutation-lock comprising a main bolt, permutation mechanism, a casing inclosing said mechanism and having a removable closure, and locking means for said closure movable With respect thereto and to said main bolt,. controlled by said permutation mechanism, and comprising automatic means for moving said locking means out of the locking position and into an unlocking position.

20. A permutation-lock comprising a main bolt, a casing having a removable closure, mechanism inclosed by said casing including permutation means controlling said bolt and locking means for said removable closure movable with respect to said main bolt, and automatically operated.

21. A permutation-lock comprising a main bolt, a pivot therefor, permutation mechanism controlling said bolt, a casing inclosing said mechanism having an opening, a cover therefor, locking means for said cover, the pivot for said main bolt projecting through the back of the casing, and means for covering the end of said pivot, held in place by said cover.

22. A permutation-lock comprising a main bolt, permutation mechanism comprising rotary tumblers, a casing inclosing said mechanism having a removable back plate provided vvith a spindle on which said tumblers are mounted, and locking means for said back plate comprising a sliding bolt mounted on said back plate, and adapted to engage the main portion of said casing and thereby lock said back plate in place, and a spiral retractile spring for said sliding bolt mounted thereon, said sliding bolt carrying means adapted to engage and be controlled by said permutation mechanism, said permutation mechanism comprising means for operating said sliding locking-bolt in opposition to said spring.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses. A

FRANK DUESTERWALD.

Witnesses Trino. G. HosTER, n EvERAnD B. MARSHALL.

Sgo

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